| 摘要 |
PURPOSE:To prevent partial deterioration in performance without displacing the drum and also prevent the occurrence of uneveness of density, by installing a picture writing means which can change the picture writing position to the picture carrier in the direction of axis and paper feeding means which can change the paper feeding position in accordance with the picture writing position. CONSTITUTION:A light from a semiconductor laser 2 forms the image on the picture scanning line 10 on a drum 1 through an optical modulator 3, which modulates conrrespondingly to a picture information signal to be recorded, mirror 4, image forming lens 5, etc. This picture writing is performed as described below. Upon receiving a reflected light from a photodetective mirror 7, a photodetective sensor 8 supplies a signal to a delaying device 9 and the optical modulator 3 is controlled by the output of the device 9. That is to say, the picture writing position can be changed optionally by changing the time by a delaying time adjustor 9' in the direction of axis. Correspondingly to this position change, cassettes 12a and 12b of copying paper are fitted to the main body of this device after they are displaced by a distance (l), which is equal to the displacement between the original picture writing position (a) and the displaced writing position (b). |
